The damage to large trees in situations where moisture is abundant 

 is not usually great, and the protection furnished to stock in such a 

 case may more than offset the slight injury to the trees. 



Every tree plantation needs to be protected by some form of fire 

 guard. Where conditions permit, a very satisfactory guard is made 

 by plowing two or three furrows about the plantation close to the 

 trees and then making a second series of furrows from one to two rods 

 outside the first. These lines may be kept free from vegetation by 

 replowing each year or they may be used for crops that do not easily 

 burn. The space between the two series of furrows should be kept 

 tee of all combustible material by burning it over at safe times. 



Approved. 



JAMES WILSON, 



Secretary. 

 WASHINGTON, D. C., November 24, 1906. 



[Cir. 54] 



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